How to set a label position to border in Kivy?

Question

Hi i have problems with positioning of my labels in Kivy. I think pictures can describe my problem best.

How it looks like now...

How I want it looks like...

I want to bind the Label 3 to the right border. I have no Idea how to do this. My Code:

import kivy

from kivy.app import App
from kivy.uix.label import Label

from kivy.uix.boxlayout import BoxLayout
from kivy.lang import Builder

root = Builder.load_string('''
Screen:
    BoxLayout:
        orientation:'vertical'
        Label:
            text: '1'
            font_size: self.height
            size_hint: (1.0, 0.17)
        Label:
            text: '2'
            font_size: self.height
            size_hint: (1.0, 0.83)
    Label:
        text: '3'
''')

class MyApp(App):
    def build(self):
        root.size_hint = (1.0, 1.0)
        return root

if __name__ == '__main__':
    MyApp().run()

Answer 1

For this type of cases there is AnchorLayout, which serves to align the widgets to a relative position.

import kivy

from kivy.app import App
from kivy.uix.label import Label

from kivy.uix.boxlayout import BoxLayout
from kivy.lang import Builder

root = Builder.load_string('''
Screen:
    BoxLayout:
        orientation:'vertical'
        Label:
            text: '1'
            font_size: self.height
            size_hint: (1.0, 0.17)
        Label:
            text: '2'
            font_size: self.height
            size_hint: (1.0, 0.83)

    AnchorLayout:
        anchor_x: 'right'
        anchor_y: 'bottom'
        Label:
            text: '3'
            font_size: self.height
            size_hint: None, None
''')

class MyApp(App):
    def build(self):
        root.size_hint = (1.0, 1.0)
        return root

if __name__ == '__main__':
    MyApp().run()